Our main goal it's to breed dogs with very good traditional fighting skills but that can be used as a good guardian too.
我们的主要目标是培育出具有非常良好的传统战斗技能狗，但可以作为一个很好的监护人使用过。
To select the improved varieties of Tung trees is a main approach to prevent the breed from degenerating.
油桐选优去劣是防止品种退化、实现油桐良种化的主要途径。
The Gramineae and Cyperaceae were Locustae's main host. The Dicotyledon could be temporary host, however , it was bad for Locustae to grow up, breed and so on.
飞蝗嗜食寄主为禾本科、莎草科植物，双子叶植物可以成为飞蝗的临时寄主，但对飞蝗的发育、繁殖及后代均有明显的不利影响；
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